Light cast iron manhole covers

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Product Description:

Ductile iron QT500 manhole covers

1. Material: QT500-7

Raw material: Q12 class brand

2. The base diameter: 800 mm

3. The base height: 65 mm

4. The cover plate diameter: 700 mm

5. Net openings: 670 mm

6. 42 kg weight:

7. Pressure load: 125 kn B125 12.5 tons

8. Surface treatment: black bituminous paint

9. Chemical and physical composition

10. The quality management system certification: ISO9001:2008

11. I plant products are 90% export, quality guaranteed, smooth surface, the pressure up to standard.


Of the goods

The base diameter

Cover plate diameter

Net openings


The weight of the

Pressure load

The material

Ductile iron manhole cover

Φ 800 mm

Φ 700 mm

Φ 670 mm

60 mm

42 kg

10 tons


Ductile iron manhole cover

Φ 900 mm

Φ 700 mm

Φ 670 mm

75 mm

49 kg

25 tons


Ductile iron manhole cover

Φ 900 mm

Φ 700 mm

Φ 670 mm

75 mm

59 kg

35 tons


Physical property










Chemical composition (%)









3.6 to 3.8

2.5 to 2.9

< = 0.60

< = 0.08

< = 0.025

0.03 to 0.05

0.03 to 0.05

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Q:What does "R0.5max" mean in hardware drawing?
R0.5max refers to the pointed corners, the maximum angular radius is 0.5mm., and some drawings will also say "edges and corners blunt" and other terms.
Q:What are the detailed classifications of hardware tools?
Hand tools, saws, wrenches, screwdrivers, pliersElectric and pneumatic tools; assembly; power tools; cutting; power tools; grinding; polishing; power tools; pneumatic toolsWeighing apparatus, measuring tool, lockset, cutter, weighing apparatus, measuring instrument, instrument, cutting tool, clampSecurity, daily hardware, security pipe fittings, door and window hardware, bathroom hardwareCraftsmen use tools, mechanics as tools, farm tools, civil tools, garden toolsSaw blade, saw blade, carbide saw blade, diamond saw blade, machine saw and saw equipmentAccessories, fittings, motor, reducer, air compressor, transmission partsMachinery, CNC, CNC electronic products manufacturing equipment, electrical appliances, machine tools and accessoriesMachinery equipment, packing equipment, printing equipment, separating equipment, welding and cutting equipmentEquipment, electric equipment, electric power, electrical equipment, wind
Q:Do you need your own hardware to buy a suit door?
Buy a set of doors, do not need to match their own hardware, but some hardware needs additional money.
Q:What does hardware and electrical appliances include?
Japanese firms first proposed the concept of Mechatronics in 1970, when they named Mechatronics, which combines mechanical, electrical, and electronic technologies. With the rapid development and wide application of computer technology, mechatronics technology have become a hitherto unknown development, integrated computer and information technology, automatic control technology, sensor technology, servo drive technology and mechanical technology, cross system technology, the forward optical electromechanical integration technology (Opto-mechatronics) development, more and more applications guangzhou.
Q:Which part is responsible for leakage of hardware?
Waterproof warranty of 5 years, 2 years of pipeline, the warranty period of non developers responsibility, if not handled to the local quality supervision departments complaints, but also no words can be on the court, or drag over the warranty period is himself.
Q:How to buy some ardware
Professionals said that, on the market of aluminum magnesium alloy and alumina two main Aluminum Alloy common materials, the price difference of nearly 1/3, due to alumina and aluminum and magnesium alloy surface looks almost, it is quite difficult for consumers to distinguish, but still can be judged from the handle, water etc.. Aluminum magnesium alloy material is relatively heavy, the surface is smooth, water stains are not easy to trace, good toughness. And the surface of alumina material is rough, easy to black or trace of water stains. At the same time, if there is a slight scratch on the surface, the aluminum magnesium alloy material can be easily wiped away, while the alumina is difficult to remove. In addition, the door handle will also vary greatly because of the distance and the type of the door.
Q:What kind of hardware do you have?
Plumbing Hardware(1) aluminium plastic pipe (2), three pass (3) pair of silk elbow (4) leak proof valve (5), ball valve (6), eight character valve (7), through valve (8), common floor drain (9), washing machine special floor drain (10), raw rubber tape
Q:Want to know the function and choice of cabinet hardware parts
Hardware accessories include handle, sink, bowl basket, seasoning basket, rice box, hook, etc., the overall function is placed in these things, you in the choice, should choose to be durable, high temperature, damp proof, waterproof, easy cleaning products, some of the food you will if you put them in the kitchen. The bad things will lead to food hygiene, long-term use of the human body is not good, the installation should also pay attention to their position, this is very important work in the kitchen was very busy, the installation location is not good, is not convenient to use will affect your mood to cook.This is since I do ambry experience, I hope useful to you (* o *).
Q:Hotel room toilet stainless steel parts, how to maintain?
Bathroom faucet cleaning methodThe tap water scale cleaning method: bathroom faucets are mostly stainless steel, in use after a period of time, the surface gloss can obviously reduce, began to appear in fog or surface scared, seriously affect the appearance.
Q:Is the hardware store profitable?
Hardware means gold, silver, copper, iron, tin. Later, metal was used to refer to all metals. In fact, a lot of hardware, whatever is money, you look at the hardware electrical market inside the boss is very rich, and the price is basically opaque, so if you do have to make sure

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